Correlation of Input Factors for RD6 Glutinous Rice Production in Multiple Cropping Systems of Growers in Roi-Et Province

บทคัดย่อ

The objectives of this study are to identify and evalvate input factors for RD6 glutinous rice production. The data were collected by interviewing farmers who grew RD6 glutinous rice in Roi-Et province during 2012/13 using differen cropping systems. The data were collected using Multi-stage sampling together with the purposive sampling method. There were 30 samples for each cropping system totaling 120 samples. The result of Cobb-Douglas Production Function shows the return to scale was 1.376, revealing an increasing return to scale. The human labor factor gave the highest affected glutinous rice yield. Amount of fertilizer and amount of seed were the effected factors, respectively. The two factors were RD6 glutinous rice with sweet corn and RD6 glutinous rice with waxy corn.